







马生角 is a Chinese idiom (chengyu) meaning “an absolute impossibility”. Something that can never happen or is utterly beyond the realm of possibility. Literally, “Horse grows horns”.
During the late Warring States period, the Qin and Yan states outwardly maintained friendly relations, each sending a royal prince to the other as a hostage.
Prince Dan of Yan was a hostage in Qin, where King Ying Zheng treated him with great rudeness and disdain.
Prince Dan requested permission from King Zheng to return to Yan, but King Zheng retorted that he would only allow it when a horse grew horns and a crow turned white.
Prince Dan eventually escaped back to Yan and later dispatched Jing Ke to assassinate King Zheng.

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Open the tool →马生角 (mǎ shēng jué) is a Chinese idiom (chengyu) meaning “an absolute impossibility”.
马生角 is pronounced mǎ shēng jué in Mandarin Chinese.
Literally, 马生角 means “Horse grows horns”. It is used to mean “an absolute impossibility”.
马生角 comes from a classical Chinese story dating back to ancient China. The full story is on this page.
乌鸦变白,马头生角。比喻不能实现之事